This datasheet introduces the features and characteristics of MIC4832 low noise 220Vp-p EL driver. The driver adopts advanced Bipolar, CMOS, DMOS (BCD) technology, integrates a high voltage boost converter and an H-bridge driver for driving a large EL lamp.
The MIC4832 is a low‑noise 220 Vpp electroluminescent (EL) driver designed for backlighting EL panels in mobile phones, multimedia players, automotive electronics and other devices. It integrates a high‑voltage boost converter and an H‑bridge driver, and its frequencies can be set with external resistors for flexible design.
Key features include a 1.8 V to 5.5 V input range, 45 µA typical operating current (down to 10 nA in shutdown), selectable switching frequencies from 65 kHz to 250 kHz, and EL lamp frequencies from 60 Hz to 1 kHz. The device is supplied in lead‑free, RoHS‑compliant 3 mm × 3 mm MLF or MSOP‑8 packages and operates from –40 °C to 85 °C.
| Input voltage range | 1.8 V to 5.5 V |
|---|---|
| Output voltage capability | 220 Vpp |
| Operating supply current | 45 µA typical |
| Shutdown current | 10 nA |
| Switching frequency range | 65 kHz to 250 kHz |
| EL lamp frequency range | 60 Hz to 1 kHz |
| Package options | 3 mm × 3 mm MLF (8‑pin) or MSOP‑8 |
| Junction temperature range | -40 °C to 85 °C |
The MIC4832 operates from 1.8 V to 5.5 V DC input voltage.
It can generate a 220 V peak‑to‑peak AC output suitable for EL lamps.
The switching frequency is adjusted with an external resistor on the RSW pin and can be set between 65 kHz and 250 kHz.
The shutdown current is specified as 10 nA.